(Editor's note: This story was updated on Aug. 23 to include information provided by the Joint Staff about a second quarterly leadership forum meeting in mid-August.) The nation's top military leader has committed to Congress that the Pentagon will work on streamlining its requirements and acquisition processes and enhancing the involvement of service chiefs. In a July 3 letter to lawmakers, Chairman of the Joint Chiefs of Staff Gen. Martin Dempsey stated the Pentagon has "acknowledged the need to...